Knife



FIG. 1 is a top view of my new knife with the bottom view thereof being identical to FIG. 1;

FIG. 2 is a bottom end view thereof with the top end view being substantially identical;

FIG. 3 is a left side elevational view thereof; and

FIG. 4 is a right side elevational view thereof. 

The ornamental design for a knife, as shown and described. 